Find hte sum of series

  • Thread starter rcmango
  • Start date
  • #1
234
0

Homework Statement



heres the equation: http://img255.imageshack.us/img255/1669/untitledfa5.jpg [Broken]

Homework Equations



i think we use cos(x)

The Attempt at a Solution



i know that cos(x) = cos(pi)

so the limit is -1?

whats the sum, i'm a bit confused.
must be in simplest form
what must i show. help.
 
Last edited by a moderator:

Answers and Replies

  • #2
Dick
Science Advisor
Homework Helper
26,260
619
I don't think you can express the sum much more simply than -1. The 'limit' you are talking about is the 'sum', right?
 
  • #3
arildno
Science Advisor
Homework Helper
Gold Member
Dearly Missed
9,970
132
What you must show is that the infinite series representation of [itex]\cos(\pi)[/itex] is identical to the infinite series given in the exercise.
 
  • #4
234
0
excellent, okay ya its simple it is only -1. I just wasn't sure what they wanted to see. thanks
 

Related Threads on Find hte sum of series

  • Last Post
Replies
10
Views
3K
  • Last Post
Replies
17
Views
2K
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
3
Views
1K
  • Last Post
Replies
7
Views
3K
  • Last Post
Replies
20
Views
2K
  • Last Post
Replies
3
Views
6K
  • Last Post
Replies
8
Views
9K
  • Last Post
Replies
9
Views
1K
Replies
7
Views
2K
Top